Car-underframe.



V. M. SUMMA.

UAR UNDERFRAME. APPLIOATION FILED MAR. 21. 19m.

Patented July 8, 1913.

ll/'nesses @M V.: M. sUMMA. UAB. UNDERFRAMB. APPPIOA'TIQI; rILED MAR. a1, 1910.

Pann'a Jul;T 8,1913.

U12 Z'ne's ses v. M. SUMMA; f l UAR UNDERPMMIL.`

` APLIoA'TIoN-HLBD MAB.'31, 1910. 1,066,544, Patented July 8, 1913.-

wifnesses: zum:

Vd'orM- Jan a @tty UNITED sTarEs PATENT onirica.

VICTOR IVI. SUMMA, OF FOUNDRY COMPANY,

LOUIS,

MISSOURI, AsszGNoR To AMERICAN CAR AND oF sT. LoUIs, MISSOURI',

A CORPORATION 0E NEW JERSEY.

CAE-UNDEEERAME.

1 ,066,544, Specification of Letters Patent.

c Patented July 8, '1913. Application tiled March 31, 1910. Serial No. 552,506. To all 'tv/omf/'Ifmftg/ concern.' Sills C are preferably ot the Z beam type 55 Be it known that I, VICTOR M. SUMMA, and the diaphragms l are conneciml to the residing at St. Louis, Missouri, and being' webs thereof by corner brackets l, 4. llach a citizen of theUnitedfStates, haveinventcross bearer E comprises upper and lower ed certain new and useful Improvements in stress members 5 and cach formed of a (lar-Underframes, ot' which the following pair of angle bars with their vertical flanges 60 is afull, clear, and exact description, such disposed contiguous and riveted together. as will enable others skilled in the art rto tension member 5 extending' acrossl and which it appertains to make and to use the above g'irders A and the horizontal flanges same, reference being had to the accomof its angles are riveted to the horizontal panying drawings, which illustrate the pre` rfiaiiees of the lupper `angles of the girders. 65

he horizontal flanges ol. the angles of member 5 are riveted as at. 7 to the upper flange of each side sill (A, and are further secured thereto by an .interposed `gusset plate S which is secured by rivets 9. 0 to 70 the horizontal flanges of the angles ot' membel-.5 and by rivets l0, l0 to the upper flange of the respective side sill C in addiferred :form of the invention, though it is to be understood that the invention is not limited to the exact details of construction Ishown and described, as it is obvious that various modifications thereof will occur to persons skilled in, the art.

In said drawings: Figure l is a top plan view ot' an undert'rame, approximately one half of the frame being' broken away for the t10n to being` retained by rivets 'i'. The saving' of space. Fig'. 2 1s a longitudinal outer portion ot each gusset plate 8 is up- 75 turned to form an attaching' f'lann'e 1l for the side nailingi sill l?. The .lower stress member (i has its endsI fixed to tho lower flanges of the side sill (l by gusset plates vertical section taken on the plane indicated by line 2--` or" Fig. l. lligs. 3. t and 5 are transverse vertical sections taken respectively on the planes indicated by lines 3h23, 4--4 and `of Fig'. l, looking 13, 13 riveted to the outstanding' flanges of 80 in the directions indicated by the arrows. the respective angles ot' member (l. and ex- Fig'. (3 is an end elevation thereof. Fig'. 7 tending' beneath and riveted to the lower is a. transverse vertical section taken on the flill'lfl'@ 0f U10 TPSDCCV@ SS (l, S0111@ 0i! ill@ plane, indicated by line 7-.-7 of Fig. Q, and rivets connecting.r the gusset plate 13 with looking in the direction jindicated by the thtfllllfl@ 0f ill@ I'OSDOCW Sill C llSO G11- S5 arrow. parts being' broken away.. and the gagging' the horizontal fianges ot the angles parts being' seen on an enlarged scale. Fig'. of member 6. rFhc stress member 6 is de- S is a fragmentary plan View of the part-g' Dressed il'ltel'nltfllal'@ its lellg'tll, and tllC seen in Fijn'. 7. Fig. 9 is a View similar to angle bars comprising,- the member extend Fig- 7 taken on tl1e'\pla11c indicated by 1in@ through apertures lt, 14 formed in the 90 plates ot' trirders A.

Fixed to the outer tace ot' each ci the plate girders .il are angle bars 15, 15 disposed with their outstamling fianges spaced apart and secured together. and their inner 9.5 flanges contacting with the outer face of the respective girder A. Bars l5 are disposed flwf) of Fig'. 2. Figa 1() is a fragmentary plan view o't` the parts seen in Fie'. 9.

Referring' to the details: A. A are built, up plate I.L'irder center sills extending throughout the length of the umlerlrame and connected directly to the end sills l. Side sills (l also connect the end sills l5 and are connected to the center sills by immediately beneath the membersl 5 and exlmlstcrs I) and main cross baal-ars E and tend to the opening' 14, and beneath said supplemental cross bearers F. Belstorl) Vopening' a similar pair of bars l5 is pro- 100 is of a built np type comprising' pairs ol vided and similarly disposed. A gusset flanged diaphragme; l, l fixed at their inner plate 1G is arranged between the outstandends to the plates and angles of the girders ing flanges ot' each pair of bars 15 and ex- A and outstanding' therefrom and connected tends across the respective opening' 14 and by top and bot-tom cover Iplates Q, 9.., the between the outstanding; tlanges of the cor# 105 responding pair of bars 15, said plate being disposed with its flat faces vertical and extending laterally from the gil-der A bensual cast filler 3 being' disposed between the 'girders in the transverse planes of the under-frame occupied by the diaphragm.'

a a Y a tween'gthe angle bars of the compression v member Gand secured to thevertical danges of said bars-by, rivets V17, the Aupper and lower portions Vot', the gusset plate being suitabl riveted'.- to ,the outstanding .flanges of theH ars 15- and 15. `Thus the said bars 1 5- and 15 provide a stiener for the respectiye 'girderA5 and the'la'cl; of continuity of said bars is compens'atedin the splice pre vided by the gusset 16.

Arranged between' the girders Ain'the transverse planes ofthe underr'rames' occupied byeach cross bearer E is a strut con- `flanges of the channel 18 tit snugly against. the inner faces of thel girders A and are -secured thereto by the same 'rivets which engage the flanges of' some of the bars 15.

' Substantially midway between each girder A'y and the respective side .sill C is a strut.

comprising a channel 19 whose ianges are cutaway at theends for lallowing the end portions. of theweb of said channel to eX- tend between the angle bars'of the tension member 5 and compression member G, said web being suitably riveted to the vertical llan'ges of said bars. Each ofthe channels 184 and 19 sustain nailing sill brackets 20,20.v Each cross bearer F comprises an upper y angle bar stress' member 2l and a lower anglebar stress member 22,.the former eX- r tending across the'top of and secured to the girders A,-'and lthe latter extending thyrough apertures 23, '23 intermediate the width of the plate or w'eb of the respective girders Stress member 22 is -xed to each girder A at ythepoin't of penetration thereof by anglev connection 2.4. The outer ends of the stress .members 21. and 22 are connected to the flanges of the respective\s1de sills C. fA gusset plate 25 is disposed between the respective end 'of member 21 and the upper lla-nge of sill C, the outer portion of plate 25 upturned as. at 26 for forming an attx! -ing flange for the longitudinal nailing sillv 12. Member 22 is connected to sill C by gusset 2'( interposed between the member andthe lower ilange of the sill. A plate 28 connects the members 21 and 22 at the mid-v dle `and serves as a strut, said plate being provided with edge angles 29, 29 xed to the respective girders A and said angles eX- tending past the vmember 22 and'down to the loweredge of the girders. 'At an intermedlate point between each girderA and vthe respective side sill C the stress members 21 and 22 are connected by strut 30 comprising achannel havngits web riveted to the vertical flanges of theI lmember-s 21 and 22,

nailing sill brackets 3 1 aiiXed to and out- A standing from plate 28I and struts 30.

rlhe plate girders A have beenv illustrated and described in their preferred embodiment, but obviously need not be built 'up but may be otherwise constructed as 4maybe found preferable.

. It 'will be' noted lower member of the cross bearers through said sills with the angle gusset plates 24 that the projection of the 'I i the perforated webs ofthe center .sillsand y vthe stitfening means extendingvertically of are all connected intermediate the top and bottom of the center sills, in Asuch manner as to eilectually brace the center sills against either outward'or inwardvindividual bending whenthe sill is subjected to buiting stresses` This connection so ties the spaced center sills that they are thereby compelled to work' together as a column to `resist such butling stresses.

Because the depth of thel center sills is greater intermediate the bolstersthanat the holsters, and

of varying depth, Ait is of great advantage to use with the same sills cross bearers ,'o different depth disposed along the lengthot said sills. In thisv manner buckling of the sills is prevented. As each of the cross' bearers intermediate the bolsters is securely fastened to the centersill webs between the top and bottom thereof and in different planes, the center sill is of substantially the same stiffness transversely as it cover plates extending the length of the sillswere used,

though the cost of manufacture isconsiderably less.' i j v What claim is:

ico

1. ln an; underframe, the combination with a plate girder center sill of a cross bearer y. having a stress member extending through ythe plate of said girder, 'alined stifi'ening bars iXed to said plate above and below the point of penetration by said stress`v` member, 'and means extending past said stress member Aand connecting said st1ii`ening bars;

2. In anl underframe,l the lcombination with a'plate girder of a cross bearer comprising upper and lower stress members, one of sai'd stress members extendin through the plate of the girder, alined sti ening bars fixed to' the plateabove' and below the.` last mentioned stress member and terminating contiguous-thereto, and means extending past` said last mentioned stress member and connectlng the, stiienin bars.

3. In an underframe, the combination with a plate girder of a crossbearer' com-- prising upper and lower stress members, one

terminating at said last mentioned stress member, and means connecting said stien- ".125 of, said lstress members extending through i 4the plate ofjsa1d girder, stidenin bars connected to said plate above and elow and iso ing bars together and to the last mentioned stress member. i

4. In an nnderframe, the combination with a plate girder of a cross bearer comprising upper and lower stress members, one of the said stress members extending through the plate of the girder, stiffening bars fixed to said plate above and below the last mentioned stress member and terminating contiguous thereto, and a'gusset plate fixed at its ends to the stifl'ening bars and at its intermediate portion to the last mentioned stress member.

.5. In combination, a plate girder, a cross bearer, a stress member extending through the plate of said girder, said member comprising a pair of spaced bars, stiffening bars i `fixed to the plate above and below the bars of the stress member, and a gusset extending between the bars of the stress Imember and fixed to the stiffening bars.

6. In combination, a plate girder, a cross bearer, a st-ress member extending through the plate of the girder and comprising a pair of' spaced bars, pairs of spaced stiffen` ing bars fixed to the girder above and below the' bars oi said stress member, and a gusset plate `disposed between the bars of the stress member and between the stiffening bars, and secured to all of said bars.

7. In combination, a plate girder, a cross bearer, a stress member extending through the plate of 'said girder and comprising a pair of langle bars, stiti'ening4 angle bars fixed tojsaid 'girder above and below 'the angle bars of the stress rjember and having outstanding flanges, and a gusset plate disposed'betlween the flanges of the stilt'ening barsand betweent-he bars ofthe stress member and attached to all of said bars.

8. 'In an underframe, the cnnbination with a pair of plate girders, spaced apart, of a cross bearer comprising upper and lower stress members, one of said members extending through the plates of said girders, stiffening means fixed to the outer faces of said plates and-extending past the last mentioned stress member, and a strut connecting vthe stress members between the girders and connected to the girders.

D. In an underframe, the combina-tion with plate girder center sills of a cross, bearer comprising an upper stress member extending across and secured to the upper edge of the girders, a lower stress member extending through the plates ofy the girders, and a strut connecting the stress members between the girders and comprising a channel having its flanges scoured to the girders.

10. In an underframe, the combination` with plate girder center sills of a cross bearer comprising upper and lower stress members, each formed f a pair of bars spaced apart,`and a channel strut connecting said stressmembers and having-the upweb of said sill and channel struts connect tween the center sill andthe side sills.

12. In an underframe, the combination with plate girder center `sills of a cross bearer comprising a stress member and extending across and attached to the upper edges of' the center sills, a lower stress member extending through the plates of the girders comprising the center sills, a strut connecting the stress members between the center sills, and means outside the center sills connecting the stress members.

13. In an underframe having relatively Z-shaped side sills, a plate girder center sill comprising a verticalweb with top and bottom flanges, a transverse truss connected respectively with the top and bottom flanges of said side sills and with its bottomflange penetrating the web of the center sill, and reinforcing members connected directly -to ing said upper and lower pair of angles be-4 said bottom flange and to the web oisaid p center sill. Y -1 let. In anl underframe having `relatively Z-shaped side sills with their bottom flanges oppositely disposed, wood nailing strips on said bottom flanges, a plate'girder center sill comprising a vertical web with top and bottom flanges, a transverse truss connected re' spectively with the top and bottoml flanges of`said side sills and with its bottomllange penetrating the web of. the center sill, and reinforcing members connected directly to said bottom flange and to the web of said center sill.

15. In an underframe, the combinationl ,with center sills of a cross bearer comprising stressV members extending across and connected `to said center sills, channel struts connecting said stress members, auch nailing sill brackets outstanding from said struts.

16. In .an underframe, the combination les with side and center sills of a cross bearerconnected thereto, and a ,gusset plate disposed between said flange and said stressV `member and coimected tothe stress member and flange, the'outer'portion ofthe gusset.;

n'ected to the. the center sills, upper stress memberto the lower edge of the center sills.

19. Inf anl 'underframa the combination with' center 'sills and side -sills, the side sills being ofQZ cross section, ofa bolster comprising diaphragms ixed to and outstanding from the center sills, top and bottom cover plates extending across the center sills and connecting saiddiaphragm, and an anglebracket plate fixed tothe outer end-'oteach diaphragm and fixed to the web of the respective side sill. l

. 20, In an underframe, the combination with a plate girder center sill, of a cross bearer comprisingT lcontinuous upper andlower rolled angles riveted together in pairs and forming stress members, the lower pair 'and stiliening means for the girder connecting saidstress members.

2l. In an `undertrame, the combination comprising a' plate girder center sill, and Z shaped side sills, of a cross bearer comprising upper stress member connected With the top flange of said Z-shaped side sill, a bottom stress member connected With the bottom'flange of said side sill, saidbottom vstress, memberv comprising connected angle sections projected through the web of the centerfsill, sill stiffening members'eXt/ending vertically o''said sill, and gusset plates connecting the lower stress member With the web'of said sill.

22. In an underframe, the combination comprising plate girder center sills,l of a cross bearerhaving a stress member formed :of connectedangles'extending through the -Webs' of said sills, stitlening members Connected to the Webs of said sills and extending above andl below the pointof penetration by said stress member, and a gusset plate connectedivitli vthe Webs ofsaid sills and with both angles of said stress member.

In an' undertrame a plurality of intersecting longitudinal and continuous transverse-.truss members, "the longitud alimen tion 4'andparts of said transveisctruss members penetrating said. plate portion at Aditelntgdistances-froinfthelbottom of said k'ber extending through'said'` sills`bvr @disperser-1.1 5

extending through the plate of said girder,

anni' aa'jusdrstaeii Sing site sus Pvwith top and bottom flanges, the combination with a center sill truss having top and bottom members vand Va vertical web, of av titii'iverse` truss havingspace op and bot@ tom members connected resp ectivel'yv Livitli: l' lff'saidside sills,

y' `Of 'spaced v ing'spaced pression 1 neinbeis`, oney of said 'members threaded fthrugh said sillsand side lls connectinfgf -theends, of. said 'members f 26. In an underframeia,4 pair of" spaced center sills, a crosslbearercoinprising' spaced tension and connere'ss'ionmembers' one of said members threaded4 through vsaid sills, side sills connecting the ends offsaid n'i'einfy 85 bers and struts connecting' the members in"-V termediate the sills. f

27. The combinationi'fith spaced' Voen-ter of a trussed cross bearer'coniprising a continuous stress memberjdisposed yaboveY said sills, and a continuous stress member di'sposed belenT said side sills, and'fextending through andconnected with: each of. saidcenter sills, said stress members being connected directly -to the ytop and bottom flanges of said sills. Y 28. In an underframe'the' combination-of a center sill, a'cross-bearerjhavi" \\member resting on saidfsill `Yn'df y sion member threaded'throug ening members extendigiiertically parallel With'said sill, and connE ti plates'se Y to said stiliening members pression member. l f 29. In an underframe the combination of center sills and a cross-bearer, comprising a compression vmember extending 'through the Webs of said sills', a tension member fdisglitt'. stress meinan underfrai'ne,

ing through-the and side sills having top 'and` bottom iianges,

16 built up cross bearers of different depths becenter sills comprising perforated vertical web portions and side sills, in combination with n cross bearer of open truss formation having one member passing over said center sills and one member projected through the perforntions .in the center sills and stiiening means, connecting the webs of the center sills at euch side of the perforationstherein with the lower member of said truss, to prevent outward bending of said center sills during' bul'fng stresses. f

33. In an underfrnme, plate girder center' sills deeper at their middle portion than et their ends, in combination with holsters, and

tween said holsters, one member of each of said cross bearers extending through the webs of said center sills intermediate their top Aand bottom and another member of-the f cross bearers extending over the top of seid center sills, und means'connecting the .webs of the center sills with the bottom members of the cross bearersto prevent spreading of said center sills intermediate the bolsters.

In witness whereof I have' hereunto set my hand in the presence of two witnesses.

, V VICTOR M. SUMMA. l'Vit-nesses OsoAR' I-IocHnRG, CHARLOTTE MITZE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of `Patents, Washington, D. C. 

